1 // SPDX-License-Identifier: GPL-2.0+ 2 // 3 // Lowland audio support 4 // 5 // Copyright 2011 Wolfson Microelectronics 6 7 #include <sound/soc.h> 8 #include <sound/soc-dapm.h> 9 #include <sound/jack.h> 10 #include <linux/gpio.h> 11 #include <linux/module.h> 12 13 #include "../codecs/wm5100.h" 14 #include "../codecs/wm9081.h" 15 16 #define MCLK1_RATE (44100 * 512) 17 #define CLKOUT_RATE (44100 * 256) 18 19 static struct snd_soc_jack lowland_headset; 20 21 /* Headset jack detection DAPM pins */ 22 static struct snd_soc_jack_pin lowland_headset_pins[] = { 23 { 24 .pin = "Headphone", 25 .mask = SND_JACK_HEADPHONE | SND_JACK_LINEOUT, 26 }, 27 { 28 .pin = "Headset Mic", 29 .mask = SND_JACK_MICROPHONE, 30 }, 31 }; 32 33 static int lowland_wm5100_init(struct snd_soc_pcm_runtime *rtd) 34 { 35 struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; 36 int ret; 37 38 ret = snd_soc_component_set_sysclk(component, WM5100_CLK_SYSCLK, 39 WM5100_CLKSRC_MCLK1, MCLK1_RATE, 40 SND_SOC_CLOCK_IN); 41 if (ret < 0) { 42 pr_err("Failed to set SYSCLK clock source: %d\n", ret); 43 return ret; 44 } 45 46 /* Clock OPCLK, used by the other audio components. */ 47 ret = snd_soc_component_set_sysclk(component, WM5100_CLK_OPCLK, 0, 48 CLKOUT_RATE, 0); 49 if (ret < 0) { 50 pr_err("Failed to set OPCLK rate: %d\n", ret); 51 return ret; 52 } 53 54 ret = snd_soc_card_jack_new_pins(rtd->card, "Headset", 55 SND_JACK_LINEOUT | SND_JACK_HEADSET | 56 SND_JACK_BTN_0, 57 &lowland_headset, lowland_headset_pins, 58 ARRAY_SIZE(lowland_headset_pins)); 59 if (ret) 60 return ret; 61 62 wm5100_detect(component, &lowland_headset); 63 64 return 0; 65 } 66 67 static int lowland_wm9081_init(struct snd_soc_pcm_runtime *rtd) 68 { 69 struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; 70 71 snd_soc_dapm_nc_pin(&rtd->card->dapm, "LINEOUT"); 72 73 /* At any time the WM9081 is active it will have this clock */ 74 return snd_soc_component_set_sysclk(component, WM9081_SYSCLK_MCLK, 0, 75 CLKOUT_RATE, 0); 76 } 77 78 static const struct snd_soc_pcm_stream sub_params = { 79 .formats = SNDRV_PCM_FMTBIT_S32_LE, 80 .rate_min = 44100, 81 .rate_max = 44100, 82 .channels_min = 2, 83 .channels_max = 2, 84 }; 85 86 SND_SOC_DAILINK_DEFS(cpu, 87 DAILINK_COMP_ARRAY(COMP_CPU("samsung-i2s.0")), 88 DAILINK_COMP_ARRAY(COMP_CODEC("wm5100.1-001a", "wm5100-aif1")), 89 DAILINK_COMP_ARRAY(COMP_PLATFORM("samsung-i2s.0"))); 90 91 SND_SOC_DAILINK_DEFS(baseband, 92 DAILINK_COMP_ARRAY(COMP_CPU("wm5100-aif2")), 93 DAILINK_COMP_ARRAY(COMP_CODEC("wm1250-ev1.1-0027", "wm1250-ev1"))); 94 95 SND_SOC_DAILINK_DEFS(speaker, 96 DAILINK_COMP_ARRAY(COMP_CPU("wm5100-aif3")), 97 DAILINK_COMP_ARRAY(COMP_CODEC("wm9081.1-006c", "wm9081-hifi"))); 98 99 static struct snd_soc_dai_link lowland_dai[] = { 100 { 101 .name = "CPU", 102 .stream_name = "CPU", 103 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 104 SND_SOC_DAIFMT_CBM_CFM, 105 .init = lowland_wm5100_init, 106 SND_SOC_DAILINK_REG(cpu), 107 }, 108 { 109 .name = "Baseband", 110 .stream_name = "Baseband", 111 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 112 SND_SOC_DAIFMT_CBM_CFM, 113 .ignore_suspend = 1, 114 SND_SOC_DAILINK_REG(baseband), 115 }, 116 { 117 .name = "Sub Speaker", 118 .stream_name = "Sub Speaker", 119 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 120 SND_SOC_DAIFMT_CBM_CFM, 121 .ignore_suspend = 1, 122 .params = &sub_params, 123 .init = lowland_wm9081_init, 124 SND_SOC_DAILINK_REG(speaker), 125 }, 126 }; 127 128 static struct snd_soc_codec_conf lowland_codec_conf[] = { 129 { 130 .dlc = COMP_CODEC_CONF("wm9081.1-006c"), 131 .name_prefix = "Sub", 132 }, 133 }; 134 135 static const struct snd_kcontrol_new controls[] = { 136 SOC_DAPM_PIN_SWITCH("Main Speaker"), 137 SOC_DAPM_PIN_SWITCH("Main DMIC"), 138 SOC_DAPM_PIN_SWITCH("Main AMIC"), 139 SOC_DAPM_PIN_SWITCH("WM1250 Input"), 140 SOC_DAPM_PIN_SWITCH("WM1250 Output"), 141 SOC_DAPM_PIN_SWITCH("Headphone"), 142 }; 143 144 static const struct snd_soc_dapm_widget widgets[] = { 145 SND_SOC_DAPM_HP("Headphone", NULL), 146 SND_SOC_DAPM_MIC("Headset Mic", NULL), 147 148 SND_SOC_DAPM_SPK("Main Speaker", NULL), 149 150 SND_SOC_DAPM_MIC("Main AMIC", NULL), 151 SND_SOC_DAPM_MIC("Main DMIC", NULL), 152 }; 153 154 static const struct snd_soc_dapm_route audio_paths[] = { 155 { "Sub IN1", NULL, "HPOUT2L" }, 156 { "Sub IN2", NULL, "HPOUT2R" }, 157 158 { "Main Speaker", NULL, "Sub SPKN" }, 159 { "Main Speaker", NULL, "Sub SPKP" }, 160 { "Main Speaker", NULL, "SPKDAT1" }, 161 }; 162 163 static struct snd_soc_card lowland = { 164 .name = "Lowland", 165 .owner = THIS_MODULE, 166 .dai_link = lowland_dai, 167 .num_links = ARRAY_SIZE(lowland_dai), 168 .codec_conf = lowland_codec_conf, 169 .num_configs = ARRAY_SIZE(lowland_codec_conf), 170 171 .controls = controls, 172 .num_controls = ARRAY_SIZE(controls), 173 .dapm_widgets = widgets, 174 .num_dapm_widgets = ARRAY_SIZE(widgets), 175 .dapm_routes = audio_paths, 176 .num_dapm_routes = ARRAY_SIZE(audio_paths), 177 }; 178 179 static int lowland_probe(struct platform_device *pdev) 180 { 181 struct snd_soc_card *card = &lowland; 182 int ret; 183 184 card->dev = &pdev->dev; 185 186 ret = devm_snd_soc_register_card(&pdev->dev, card); 187 if (ret) 188 dev_err_probe(&pdev->dev, ret, "snd_soc_register_card() failed\n"); 189 190 return ret; 191 } 192 193 static struct platform_driver lowland_driver = { 194 .driver = { 195 .name = "lowland", 196 .pm = &snd_soc_pm_ops, 197 }, 198 .probe = lowland_probe, 199 }; 200 201 module_platform_driver(lowland_driver); 202 203 MODULE_DESCRIPTION("Lowland audio support"); 204 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 205 MODULE_LICENSE("GPL"); 206 MODULE_ALIAS("platform:lowland"); 207